THE APOLLO INTELLIGENT METER SERIES
MODEL IMR INSTRUCTION MANUAL
IMRCVR-L.QXD 10/6/2005 9:02 AM Page 1
INTRODUCTION
The Intelligent Meter for RTD Inputs (IMR) is another unit in our multi-purpose
series of industrial control products that is field-programmable to solve multiple
applications. This series of products is built around the concept that the end user
has the capability to program different personalities and functions into the unit in
order to adapt to different indication and control requirements.
The Intelligent RTD Meter which you have purchased has the same high quality
workmanship and advanced technological capabilities that have made Red Lion
Controls the leader in today’s industrial market.
Red Lion Controls has a complete line of industrial indication and control
equipment, and we look forward to being of service to you now and in the future.
CAUTION: Risk of Danger.
Read complete instructions prior to
installation and operation of the unit.
CAUTION: Risk of electric shock.
IMRCVR-L.QXD 10/6/2005 9:02 AM Page 2
Table of Contents
SAFETYINFORMATION ······························································ 3
SafetySummary ·································································· 3
GENERALDESCRIPTION ····························································· 4
Theory Of Operation ······························································· 4
BlockDiagram ···································································· 5
PROGRAMMINGANDOPERATINGTHEIMR ············································ 6
ProgrammingtheIMR ······························································ 6
Module #1 - Program RTD Type, Temperature Scale (F or C)
AndDecimalPointPosition ·········································· 8
Module #2 - Program Temperature Display Offset And Slope ······························ 8
Module #3 - Program Functions Accessible W/ Front Panel Lockout ························9
Module #4 - Program Digital Filter And Remote Input ··································· 11
Module #5 - Program Integrator/Totalizer ············································· 13
Module #6 - Program Alarm/Setpoint ················································ 14
Module #7 - Program Serial Communications ········································· 16
Module #8 - Program Re-Transmitted Analog Output ··································· 17
Module #9 - Service Operations ····················································· 18
OperatingtheIMR ································································ 19
QuickProgramming ······························································ 19
FactoryConfiguration ····························································· 20
ProgrammingExample ···························································· 21
TemperatureMonitoringExample ··················································· 22
ProcessControlExample ·························································· 23
INTEGRATOR/TOTALIZER/PEAK/VALLEY/TEMPERATUREOFFSET(Optional) ···········24
Integrator/Totalizer ······························································· 24
Peak/Valley ····································································· 24
Offset and Slope Display Temperature ·············································· 24
Integrator/TotalizerExample ······················································· 25
Integrator/TotalizerSet-Up ························································· 25
ALARMS(Optional)································································· 27
20 mA CURRENT LOOP SERIAL COMMUNICATIONS (Optional) ··························28
General Description ······························································ 28
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CommunicationFormat···························································· 28
Sending Commands to the IMR ····················································· 29
CommandStringExamples ····················································· 29
ReceivingDatafromtheIMR ······················································· 31
CURRENT LOOP INSTALLATION ····················································· 32
Wiring Connections ······························································· 32
SerialTerminalDescriptions ······················································· 32
SerialCommunicationsExample ···················································· 33
Process Controlling System ····················································· 33
RE-TRANSMITTEDANALOGOUTPUT(Optional) ······································· 34
AnalogOutputCalibration ························································· 35
APPENDIX“A”-INSTALLATION&CONNECTIONS ····································· 36
InstallationEnvironment ··························································· 36
Panel Installation ······························································ 36
Select AC Power (115/230 VAC) ···················································· 36
EMCInstallationGuidelines ························································ 37
Wiring Connections ······························································· 38
PowerWiring ································································· 38
User Input Wiring ······························································ 38
OutputWiring ································································· 39
Signal Wiring (RTD Sensor) ····················································· 39
APPENDIX “B” - SPECIFICATIONS AND DIMENSIONS ·································· 40
APPENDIX“C”-TROUBLESHOOTINGGUIDE ·········································· 43
APPENDIX “D” - PROGRAMMABLE FUNCTIONS ······································· 44
APPENDIX“E”-ORDERINGINFORMATION ··········································· 46
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SAFETY INFORMATION
SAFETY SUMMARY
All safety related regulations, local codes and instructions that appear in the
manual or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
Do not use this unit to directly command motors, valves, or other actuators not
equipped with safeguards. To do so, can be potentially harmful to persons or
equipment in the event of a fault to the unit.
DEFINITION OF TERMS
INSTALLATION CATEGORY (overvoltage category) I:
Signal level, special equipment or parts of equipment, telecommunication,
electronic, etc. with smaller transient overvoltages than Installation
Category (overvoltage category) II.
INSTALLATION CATEGORY (overvoltage category) II:
Local level, appliances, portable equipment, etc. with smaller transient
overvoltages than Installation Category (overvoltage category) III.
-3-
GENERAL DESCRIPTION
The Apollo Intelligent RTD Meter (IMR) accepts standard RTD inputs and
precisely linearizes them into temperature readings. A full 6-digit display
accommodates a wide range of temperature inputs and holds large totalization
values. State-of-the-art digital circuitry virtually eliminates errors due to drift. A full
complement of option packages is available to fulfill many process applications.
The indicator features a readout choice of either Fahrenheit or Celsius with 0.1
or 1 degree of resolution. English Style display prompts aid the operator through
set-up and operation. A front panel lock-out menu protects set-up data and
operation modes from unauthorized personnel. Programmable digital filtering
enhances the stability of the reading. Programmable remote input “E1-CON” pin
can be utilized to control a variety of functions, such as totalizing, alarm control,
peak/valley reading, display hold or offset operations. All set-up data is stored in
E
2
PROM, which will hold data for a minimum of 10 years without power.
An optional integrator/totalizer can be used to totalize or integrate temperatures
up to a maximum display value of 999,999. It features independent scaling and a
low temperature cut-out to suit a wide variety of temperature integration
applications. Programmable remote input “E2-CON” pin is included with the
option and can be utilized to control a variety of functions, such as totalizing, alarm
control, peak/valley readings, display hold or offset operations, simultaneously
with “E1-CON” pin. Peak/valley (max/min) reading memory functions are
included with this option and they are easily recalled and controlled by either the
front panel or a remote input. All readings are retained at power-down.
Optional dual relays with parallel solid state outputs are fully programmable
to operate in a wide variety of modes to suit many control or alarm applications.
Optional 20 mA loop, bi-directional serial communications provides
computer and printer interfacing to extend the capabilities of the indicator. More
than one unit can be connected in the loop with other RLC products which have
serial communications capabilities.
An optional 4 to 20 mA or 0 to 10 VDC re-transmitted analog output can be
scaled by the user to interface with a host of recorders, indicators and controllers.
The type of analog output is determined by the Model No. that is ordered. (See
Ordering Information for available models.) The indicator has several built-in
diagnostic functions to alert operators of most malfunctions. Extensive testing of
noise interference mechanisms and full burn-in make the indicator extremely
reliable in industrial environments. The die-cast front bezel meets NEMA 4/IP65
requirements for washdown applications, when properly installed. Plug-in style
terminal blocks simplify installation wiring and change-outs.
THEORY OF OPERATION
The IMR employs a microprocessor to perform the A/D conversion on the input
signal via a voltage-to-frequency converter. It digitally scales the result, corrects
for meter drift which may be present and then displays the result in a 6-digit display
(4 digits for temperature, 6 digits for totalizer). The inputs are filtered to enhance
the stability of the display. A non-volatile E
2
PROM memory device provides
permanent data retention for operating variables. The display consists of drivers
and 6-digit solid-state LEDs. The alarm option employs opto-isolators to isolate
the open collector devices from meter common. Operating in parallel, the relays
are type Form-C and are rated at 5-amps. The serial communication option features
a built-in 20 mA current source and complete opto-isolation. The analog option
features a 12-bit DAC and provides an output signal that is digitally scaled. The
re-transmitted output is isolated from meter common.
-4-
-5-
BLOCK DIAGRAM
Note: Analog “-” and Alarm common are separate and isolated from the signal common. The commons should NOT be tied together.
PROGRAMMING AND OPERATING THE IMR
PROGRAMMING THE IMR
Although the unit has been programmed at the factory, the set-ups will generally
have to be changed to suit the application. Basic set-up is complete after units of
temperature selection, decimal point selection, and digital filtering level selection.
Before actually trying to program the indicator, it is advised to organize all the
data for the programming steps to avoid any possible confusion and to read the
programming procedure entirely before proceeding.
To set-up the indicator, connect AC power and signal wires as outlined in the
connections section (Appendix “A”). Remove the jumper wire (if installed) from
TBA #3 (PGM. DIS.). This will allow the operator to enter and modify all of the
indicator’s parameters. Press the front panel button labeled “P”, momentarily.
Briefly, the display will show “Pro” alternately flashing with “0”.Thisisthe
indicator’s programming mode. The programming mode is divided into sections,
numbered 0-9, each of which can be individually accessed. The front panel
“UP” and “DOWN” arrow buttons can be used to select one of these numbers
and the “P” button can be used to enter the selected programming module. In all
of the programming modules, “UP” and “DOWN” are used to either select from
a list of choices or enter a value. The “P” buttonisusedtosavethenewvalueand
progress to the next step within a module (Note: the new value takes effect when
“P” is pressed). Upon completion of a module, the indicator returns to the “Pro”
<>“0” stage. Pressing the “P” button at this time causes the unit to display
“End” after which the unit returns to the normal display mode. The following
table explains the basic function of each step.
Note: < > This indicates that the display will alternate between the English
prompt and the actual data.
-6-
DISPLAY RESULT OF “P” BUTTON
“Pro” < > “0” - Causes the indicator to return to normal display mode. Any
changes to set-up data are permanently stored in the E
2
PROM.
“Pro” <>“1”- Entry into this module allows the user to select the RTD type,
whether the display will read in degrees Fahrenheit (F) or
Celsius (C), and display decimal point position.
“Pro” <>“2” - Entry into this module allows the user to select non-standard
display slope and display offset values. This enables the meter
to be “scaled” to a calibrated temperature probe. (This scaling
is NOT required for most applications.)
“Pro” <>“3”- Module #3 allows the user to program what can be accessed
from the front panel when the PGM. DIS. (Program Disable,
TBA #3) pin is connected to common. This feature protects
critical set-up data from accidental modification while allowing
access to setpoints and other functions. The front panel lock-out
menu (quick programming) includes setpoint modification,
integrator/totalizer resetting, and peak/valley resetting.
Note: The term “Quick Programming” is used to refer to the
ability to change the information that can be accessed from the
front panel when the “PGM. DIS.” terminal is connected to
“COMM.”.
“Pro” <> “4” - Module #4 programs the digital filtering level and the function
of the remote input “E1-CON” pin (TBA #4), and if the totalizer
option is installed, the remote input “E2-CON” pin (TBA #8).The
functions of the remote E1 and E2 pins are the same and include
display hold, peak/valley modes, totalizer reset, alarm reset,
temperature offset, reading synchronization or print request.
DISPLAY
RESULT OF “P” BUTTON
“Pro” <>“5”- This module sets the time base, scale factor and low temperature
disable function for the optional integrator/ totalizer.
“Pro” < > “6” - This module allows programming for the basic configuration of
the alarm option. The programming includes HI/LO acting,
tracking, alarm display, latched or auto-reset, assignment to
either the input or the integrator/totalizer, and alarm and
hysteresis values.
“Pro” <>“7” - Module #7 is the serial communication parameter programming.
Baud rate, unit address, print request function and condensed
prints are all programmable.
“Pro” <>“8”- This module allows digital scaling of the retransmitted analog
output. Display values that correspond to 4 mA or 0 VDC and
20 mA or 10 VDC are keyed-in to scale the output and it may be
assigned to either the input or the integrator/ totalizer.
“Pro” <>“9”- This module is the service operation sequence and is not
normally accessed by the user. This step re-calibrates the basic
input and is used to compensate for long-term drift. Execution
of this module should be done by technicians with the proper
equipment in accordance with a maintenance plan of yearly
recalibrations. A code number entry step is used to protect from
inadvertent entries. Also, there is a number of other access
codes which provide test and set-up changes as an aid in
troubleshooting.
-7-
MODULE #1 - PROGRAM RTD TYPE, TEMPERATURE SCALE (F OR C)
AND DECIMAL POINT POSITION
Select the desired RTD type by pressing the “UP” or “DOWN” button.
“rtdtyP” < > “385”
“392”
Select the desired temperature scale by pressing the “UP” or “DOWN”
button.
“SCALE” < > “F”
“C”
Select the desired decimal point location by pressing the “UP” or “DOWN”
button.
“dECNPt”<> “0”
“0.0”
If the totalizer option is installed the offset and slope can be programmed for
various temperature probe differences. Reference offset and slope display
temperature section for more details.
Select the desired temperature display slope value by pressing the “UP” or the
“DOWN” button.
“SLOPE” < > “0.0001” to “9.9999” (ex. 1.0309)
Select the desired temperature display offset value by pressing the “UP” or the
“DOWN” button.
“OFFSEt” < > “-999” to “9999” (ex. -17.5)
-8-
MODULE #2 - PROGRAM TEMPERATURE DISPLAY OFFSET AND SLOPE
MODULE #3 - PROGRAM FUNCTIONS ACCESSIBLE W/ FRONT PANEL LOCKOUT
This programming module programs what is accessible through the front
panel when the PGM. DIS. pin is connected to common (COMM.).
Note: The term “Quick Programming” is used to refer to the ability to change the
information that can be accessed from the front panel when the “PGM. DIS.”
terminal is connected to “COMM.”.
DISPLAY ALARM VALUES
If the alarm option is installed, this selects whether the alarm values will or
will not be displayed.
“dSP AL” < > “yES” or “NO”
ENTER ALARM VALUES =
If “YES” was selected for display alarm values, this will select if alarm values
may be modified from the front panel. (If “NO” was selected for display alarm
values, then this step will default to “NO” and will not be displayed for selection.)
“ENt AL” < > “yES” or “NO”
DISPLAY HYSTERESIS VALUES
If the alarm option is installed, this selects whether the hysteresis values will
or will not be displayed.
“dSPHYS” < > “yES” or “NO”
ENTER HYSTERESIS VALUES =
If “YES” was selected for display hysteresis values, this selects whether
hysteresis values may be modified from the front panel. (If “NO” was selected
for display hysteresis value, then this step will default to “NO” and will not be
displayed for selection.)
“ENtHYS” < > “yES” or “NO”
= Note: This sequence may be locked-out due to other programmed sequences.
* Note: This function operates independent of the state of the “PGM. DIS.” pin.
RESET LATCHED ALARMS
If the alarm option is installed and if either alarm is programmed to latch, this
will select if a latched alarm(s) can be reset from the front panel.
“rSt AL” < > “yES” or “NO”
DISPLAY PEAK/VALLEY MEMORY BUFFER
If the integrator/totalizer option is installed, this selects whether peak and
valley buffers will be displayed.
“dSPbUF” < > “yES” or “NO”
RESET PEAK/VALLEY MEMORY BUFFER =
If “YES” was selected for the previous step, this selects whether the peak and
valley buffers may be reset from the front panel. (If “NO” was selected, then this
step defaults to “NO” and will not be displayed for selection.)
“rStbUF” < > “yES” or “NO”
SELECT DISPLAY*
If the integrator/totalizer option is installed, this selects whether the display can be
switched from input display to total display and from total display to input display.
Note: When “NO” is selected, whatever display (Input or total) is shown, will be
the only display accessible.
“SELdSP” < > “yES” or “NO”
RESET TOTAL*
If the integrator/totalizer option is installed, this selects whether the total can
be reset from the front panel.
“rSttOt” < > “yES” or “NO”
-9-
RESET TOTAL (cont’d)*
Depending on functions selected under Pro 3 and Pro 6, alarms, hysteresis, peak,
and valley values can be monitored and/or changed when PGM. DIS. is tied to
COMM. This provides a “QUICK PROGRAMMING” method for “day to day”
process changes. (See QUICK PROGRAMMING SECTION for more details.)
TEMPERATURE OFFSET VALUE =
If the Integrator/Totalizer/Peak/Valley/Temperature Offset option is
installed, this selects whether the programmed offset value will be displayed.
“dSPOFF” < > “yES” or “NO”
ENTER OFFSET VALUE =
If “YES” was selected for the previous step, this selects whether the offset
value can be entered from the panel. (If “NO” was selected, then this step
defaults to “NO” and will not be displayed for selection.)
“ENtOFF” < > “yES” or “NO”
Depending on functions selected under Pro 3 and Pro 6, alarms, hysteresis,
peak, valley and offset values can be monitored and/or changed with PGM. DIS. is
tied to COMM. This provides a “QUICK PROGRAMMING” method for “day to
day” process changes. (See QUICK PROGRAMMING SECTION for more
details.)
= Note: This sequence may be locked-out due to other programmed sequences.
* Note: This function operates independent of the state of the “PGM. DIS.” pin.
-10-
MODULE #4 - PROGRAM DIGITAL FILTER AND REMOTE INPUT
PROGRAM DIGITAL FILTERING
If the displayed process signal is difficult to read due to small process
variations or noise, increased levels of filtering will help to stabilize the display.
This programming step may be used in conjunction with display rounding
programming (Pro1&2)to help minimize this effect. The digital filter used is an
“adaptive” filter. That is, the filter coefficients change dynamically according to
the nature of the input signal. This feature simultaneously allows the filter to
settle quickly for large input changes while providing a stable display reading for
normal process variations. Because of the adaptive nature of the filter, it cannot
be characterized in terms of a time constant. The following table lists the
maximum settling time for a step input to within 99% of final value.
Filter Value Settling Time (99%)
“FILter” < > “0” - no digital filtering 1.5 sec.
“1” - normal filtering 2 sec.
“2” - increased filtering 6 sec.
“3” - maximum filtering 13 sec.
PROGRAM FUNCTION OF E1-CON AND
OPTIONAL E2-CON PIN
The function of the remote input “E1-CON” pin (TBA #4) and, if the totalizer
option is installed, the remote input “E2-CON” pin (TBA #8) are the same.
Functions are activated, as described in the appropriate function, when
connected to signal common (TBA #7). Whether a function is edge or level
activated it must be held low for a minimum of 20 msec in order for the function
to occur. The remote input pins can be used simultaneously and with any
combination of functions. When pins are tied together and activated, E1-CON
function is generally performed first.
“E1-CON”< > “0” - If the Totalizer/Peak/Valley/Display Offset option is
installed, a negative going edge offsets the displayed
temperature to zero. (At the time the E-Pin is activated, the value
of the actual temperature being displayed is placed in the
location of the display offset value. To bring the unit into the
normal temperature display mode, reset the offset value to zero
via the front panel.)
“1” - A negative going edge resets the contents of the totalizer to zero.
Totalization commences regardless of the state of the input.
“2” - A negative going edge resets the contents of the totalizer to
zero and allows totalization as long as input is low. If the input
goes high, totalization is stopped and the contents are saved.
This acts as a totalization enable control from time T1 to T2.
“3” - A low level allows totalization as long as the input is low. If the
input goes high, totalization is stopped and the contents are saved.
This acts as a totalization enable control from time T1 to T2.
“4” - A low level holds the display (display hold). While this input is
low, the indicator continues to process the input signal and
drive the alarms, totalizer, etc. with the actual signal. The
contents of the totalizer are stored at the same time the input
display is held.
Note: If display hold is activated, and input value is requested via
serial, the value on the display will be sent instead of the actual
input value at that time.
“5” - A negative going edge resets both peak and valley buffers.
Note: If P/V is called up, a change will not appear on the display
until the next time the P/V is called up.
“6” - A negative going edge resets only the peak buffer and the
indicator enters a peak reading display mode as long as the
input is low. If the input goes high, peak detection and
indication are stopped and the last peak reading is retained.
“7” - A negative going edge resets only the valley buffer and the
indicator enters a valley reading display mode as long as the
input is low. If the input goes high, valley detection and
indication are stopped and the last valley reading is retained.
“8” - If the alarm option is installed, a negative going edge resets the
latched alarm(s).
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PROGRAM FUNCTION OF E1-CON AND
OPTIONAL E2-CON PIN (Cont’d)
“9” - If the alarm option is installed, a low level resets a latched or
unlatched alarm into its inactive state. This provides manual
override of alarms for system start-up and other unusual events
such as system testing.
“10” - A negative going edge toggles the display between “input”
and “total” (from input to total, or vice versa). No action is
taken on the positive going edge.
“11” - A negative going edge zeros (tares) the input signal and adds
the value that was in the input display to the totalizer value,
every time this operation is performed. The time-base, scale
factor and low cut-out in “Module #5” are in affect disabled,
when this function is selected.
“12”- Display hold with offset. A negative going edge tares (zeros) the
input signal. Prior to the offset operation, the input signal is saved
and held (display hold) as long as the remote input pin is low. On
the positive edge, the input display will show zero. If there is an
increase to the input signal while the remote input is low, the
display will reflect (show) the increase at the positive edge.
“13”- Instrument reading synchronization. A low level disables all
meter operations (alarms, total, analog out, etc.). A positive
edge resets the start of the A/D conversion, to allow
synchronization with external processes and controls. While in
this function, the other E-CON pin will be operational.
“14”- Print request. Transmits data according to the print options
that have been selected in Program Module #7. If the low time
exceeds 800 msec, a second print-out may occur.
“E2-CON” < > If the totalizer option is installed, E2-CON has the same
programmable functions as E1-CON.
-12-
MODULE #5 - PROGRAM INTEGRATOR/TOTALIZER
Programming for the integrator/totalizer consists of four programming steps:
totalizer decimal point position, time base, scale factor and low temperature
disable. Note that the decimal point position of the integrator/totalizer can be set
independent of the decimal point position of the input. The totalizer value will
roll over and flash when the total exceeds, 999999 or -99999, indicating an
overflow condition. Reverse signal input will cause the totalizer value to count in
the opposite direction and eventually no longer be in an overflow condition.
PROGRAM DECIMAL POINT POSITION FOR THE
INTEGRATOR/TOTALIZER
The decimal point position for the totalizer are as follows:
“dECPNt”<>“0”
“0.0”
“0.00”
“0.000”
“0.0000”
PROGRAM INTEGRATOR/TOTALIZER TIME BASE
The time base determines the rate at which readings increase. The
integrator/totalizer display is updated
2
1
2
times per second regardless of time
base selected, but longer time bases decrease the magnitude of each increase. The
three time bases are per second, per minute and per hour. A constant input
temperature of 100°, for example, would integrate/totalize to 100° in one second
(withaTBof1sec.), 100° in one minute (withaTBof1min.), and 100° in one
hour (withaTBof1hr.). (Note: Input changes can be made synchronous to the
display by programming E1 or optional E2-CON pin for function 13, Instrument
reading synchronization.) A multiplying scale factor may be used to span the
standard time ranges (or divide if scale factor < 1). The following equation
expresses the integration/totalization process.
S.F. = D.T.
xT.B.x D.T.D.P.
I.D. TIME I.D.D.P.
S.F. = Programmable Scale Factor
D.T. = Desired Totalizer value for a
fixed time duration
T.B. = Programmable Time Base
TB = If Program Select Number Chosen Is:
Enter in Formula
“0” for sec. 1
“1” for min. 60
“2” for hr. 3600
I.D. = Input Display Value
TIME = Actual Time period in seconds
D.T.D.P. = Desired Totalizer Value Decimal Point
Enter in Formula
01
0.0 10
0.00 100
0.000 1000
0.0000 10000
I.D.D.P. = Input Display Value Decimal Point
Enter in Formula
01
0.0 10
“tbASE” < > “0” - per second
“1” - per minute
“2” - per hour
PROGRAM THE INTEGRATOR/TOTALIZER SCALE FACTOR
As explained in the previous programming step, a multiplying scale factor can
be used to scale the update rate as required. This may be used to span the standard
ranges. A scale factor of “1.000” has no effect on the standard ranges.
“SCLFAC” < > “0.001” to “100.000”
PROGRAM THE LOW-END CUTOUT (low temperature level
disable)
In order to prevent false integration/totalization in situations where
integration/totalization is undesirable, a programmable setpoint can be used to
disable integration/totalization when the input temperature falls below this
low-end cutout level.
“Lo-cut” < > “-999” to “9999”
-13-
MODULE #6 - PROGRAM ALARM/SETPOINT
If the alarm option is installed, this module is used to configure the operation of
the alarms to a variety of combinations. The programmable options are HI/LO
acting, auto/manual reset (latching), tracking, assignment to input or
integrator/totalizer, display alarms, alarm values and hysteresis (deadband) values.
ALARM TRACKING
With alarm tracking, whenever alarm #2 is changed, alarm #1 will also change
so that the offset between alarm #2 and alarm #1 remains the same. This is useful
for hierarchical setpoints (pre-alarm and alarm) when one change applies to
both alarm values. When programming from the front panel, tracking only occurs
when PGM. DIS. is low (front panel lock-out mode, alarm #1 will not appear).
Tracking will always occur if alarm #2 is modified via serial communications
independent of PGM. DIS.
“trAc”<>“yES”or“NO”
DISPLAY ALARMS
If display alarms are desired, a message will flash on the display every 5-10
secs when an alarm activates. For alarm 1, the message will flash “AL1 ON” and
alarm 2 will flash “AL2 ON”, this warns an operator of an alarm condition. The
message will stop when the unit is no longer in an alarm condition.
“dISP” < > “yES” or “NO”
AUTO OR MANUAL RESET FOR ALARM #1
The reset action of alarm #1 may be programmed to reset automatically
(unlatched) or be programmed to require a manual reset (latched), through either
a remote input (E1-CON or optional E2-CON) or through the front panel.
Latched alarms are usually used when an operator is required to take some action
for the alarm condition.
“LAtC-1” < > “yES” or “NO”
ALARM #1 ASSIGNMENT TO INPUT OR
INTEGRATOR/TOTALIZER
Alarm #1 may be programmed to activate on either the input or the
integrator/totalizer value. If the integrator/totalizer option is not installed, this
step defaults to the input.
“ASN-1” < > “INPUt” or “totAL”
PROGRAM VALUE FOR ALARM #1
The range of the alarm value is -999 to 9,999 for the input display and -99999
to 999999 for the totalizer option display.
“AL-1” < > “-999” to “9999”
PROGRAM HYSTERESIS VALUE FOR ALARM #1
(Cannot be programmed if alarm latch is programmed)
The hysteresis (deadband) value for alarm #1 may be programmed from 1 to
9,999 for the input and 1 to 999999 for the totalizer option. The value is either
added to or subtracted from the alarm value depending on whether the alarm is
high or low acting. (See “alarm” section for operation.)
“HyS-1” < > “1” to “9999”
ALARM #1 HIGH OR LOW ACTING
The action of alarm #1 may be programmed to activate either when the signal
goes above the alarm value (high acting) or goes below it (low acting).
“Act-1”<>“HI”or“LO”
AUTO OR MANUAL RESET FOR ALARM #2
The reset action of alarm #2 may be programmed to reset automatically
(unlatched) or be programmed to require a manual reset (latched), through either
a remote input (E1-CON or optional E2-CON) or through the front panel.
Latched alarms are usually used when an operator is required to take some action
for the alarm condition.
“LAtC-2” < > “yES” or “NO”
-14-
ALARM #2 ASSIGNMENT TO INPUT OR INTEGRATOR/
TOTALIZER
Alarm #2 may be programmed to activate on either the input or the
integrator/totalizer value. If the integrator/totalizer option is not installed, this
step defaults to the input.
“ASN-2” < > “INPUt”or “totAL”
PROGRAM VALUE FOR ALARM #2
The range of the alarm value is -999 to 9,999 for the input display and -99999
to 999999 for the totalizer option display.
“AL-2” < > “-999” to “9999”
PROGRAM HYSTERESIS VALUE FOR ALARM #2 (Cannot be
programmed if alarm latch is programmed)
The hysteresis (deadband) value for alarm #2 may be programmed from 1 to
9,999 for the input and 1 to 999999 for the totalizer option. The value is either
added to or subtracted from the alarm value depending on whether the alarm is
high or low acting. (See “alarms” section for operation.)
“HyS-2” < > “1” to “9999”
ALARM #2 HIGH OR LOW ACTING
The action of alarm #2 may be programmed to activate either when the signal
goes above the alarm value (high acting) or goes below it (low acting).
“Act-2” < > “HI”or “LO”
Note: Depending on options selected under Pro 3 and Pro 6, alarms, hysteresis,
peak, and valley values can be monitored and/or changed when PGM. DIS. is
tied to COMM. This provides a “QUICK PROGRAMMING” method for “day
to day” process changes. (See QUICK PROGRAMMING SECTION for more
details.)
-15-
MODULE #7 - PROGRAM SERIAL COMMUNICATIONS
Several programmable parameters must be programmed before serial
communication can occur.
BAUD RATE
Select one of the baud rates from the list to match the baud rate of the printer,
computer, controller, etc.
“bAud” < > “300” - 300 baud
“600” - 600 baud
“1200” - 1200 baud
“2400” - 2400 baud
UNIT ADDRESS NUMBER
To allow multiple units to communicate on the 20 mA loop, different address
numbers must be assigned to each unit. If only one unit is on the loop, an address
of “0” may be given, eliminating the need for the address command.
“AddrES” < > “0” to “99”
PRINT REQUEST FUNCTION
A selection of print operations can be programmed. A print operation occurs
when a print request is activated via E1-CON (TBA #4) or optional E2-CON
(TBA #8) pin, or a “P” command is sent from a terminal via the serial
communications option. If the option to which a particular print code applies is
not installed, then that parameter will not be printed.
If the totalizer is overflowed, an asterisk (*) will precede the digits that are
printed (ex. *000127 positive overflow, -*00127 negative overflow).Ifthe
temperature exceeds the range of the unit or the sensor opens, the print-out will
show “OPEN” and for the negative direction or shorted will show “SHOrt”.
“Print” < > “0” - input signal
“1” - input signal, peak, valley and offset
“2” - input signal and alarm 1 and alarm 2
“3” - input signal, alarm 1, alarm 2, hysteresis 1,
hysteresis 2, peak, valley, and offset
“4” - totalizer
“5” - input signal and totalizer
“6” - input signal, totalizer, peak, valley, and offset
“7” - totalizer and alarm 1, and alarm 2
“8” - input signal, totalizer, alarm 1, and alarm 2
“9” - input signal, totalizer, alarm 1, alarm 2,
hysteresis 1, hysteresis 2, peak, valley, and offset
FULL OR ABBREVIATED TRANSMISSION
When transmitting data, the IMR can be programmed to suppress the address
number, mnemonics and some spaces, if desired, by selecting “NO”. A selection
of “NO” results in faster transmission. This feature may be helpful when
interfacing with a computer. When interfacing to a printer, a “yES” response is
usually desirable.
“FULL” < > “yES” or “NO”
An example of full and abbreviated transmission is shown below:
2 RTD -125.7F < CR > < LF > Full transmission
-125.7 < CR > < LF > Abbreviated transmission
-16-
MODULE #8 - PROGRAM RE-TRANSMITTED ANALOG OUTPUT
This programming module allows digital scaling of the 4 to 20 mA or 0 to 10
VDC analog output. The type of analog output is determined by the Model
ordered. (See Ordering Information for available models.) The display value at
which4mAor0VDCandthedisplayvalueatwhich20mAor10VDCare
transmitted are keyed-in. The indicator automatically calculates slope and
intercept values to complete the scaling. The analog output then follows the
calculated display value and as such will update every measurement cycle. The
output may also be programmed to proportionally re-transmit the contents of the
totalizer instead of the input. Reverse acting output can be achieved by
programming the “high” display value for the “AN-LO” programming step and
the “low” display value for the “AN-HI” step.
Note: DO NOT ADJUST THE ANALOG OUTPUT POTS ON THE BACK OF
THE UNIT. Fine offset and span adjustment pots are externally accessible to
compensate for small drifts in the output. These pots have been set at the
factory and do not normally require adjustment.
ANALOG OUTPUT SOURCE
Program whether the input or the totalizer will serve as the basis for the analog
output signal. If the integrator/totalizer option is not installed, then this step
defaults to “Input”.
“ASIN” < > “INPUt” or “totAL”
ANALOG OUTPUT LO DISPLAY VALUE
Program the display value at which the analog output transmits 4 mA or 0
VDC.
“AN-Lo” < > “-999” to “9999” for “INPUt”
“-99999” to “999999” for “totAL”
ANALOG OUTPUT HI DISPLAY VALUE
Program the display value at which the analog output transmits 20 mA or 10
VDC.
“AN-HI” < > “-999” to “9999” for “INPUt”
“-99999” to “999999” for “totAL”
-17-
MODULE #9 - SERVICE OPERATIONS
The indicator has been fully calibrated at the factory. If the unit appears to be
indicating incorrectly or inaccurately, refer to the troubleshooting section before
attempting this procedure.
When re-calibration is required (generally every 2 years), this procedure
should only be performed by qualified technicians using appropriate equipment.
Resistance source accuracies of 0.02% or better are required.
The procedure consists of applying accurate signal levels to the indicator in a series
of two steps. Allow a 30 minute warm-up period before starting this procedure.
Note: Once the access code has been entered, there is no exiting the program
module without completing the calibration procedure.
ENTER ACCESS CODE
A code number (48) must be keyed-in prior to the calibration sequence to
guard against inadvertent entries. Access code numbers other than those listed in
this section should not be entered at this step. If any are entered, undefined or
unpredictable operation could result.
“CodE” < > “0” to “99”
If the code number for the previous step was not recognized, the indicator returns
to “Pro 0”, with no action taken. Otherwise, the calibration procedure is started.
ENTER ZERO REFERENCE
Apply 0 ohms to input by shorting Terminals 5, 6, and 7 as
shown in the drawing to the right. Allow to stabilize for 20
seconds before pressing “P”.
“StEP 1” (Press “P”)
APPLY PRECISION RESISTANCE
Terminals 5 and 6 remain shorted. (Note: Be certain to short
Terminals 5 and 6 at the resistor as shown in the drawing to the
right. Shorting terminals may lead to incorrect calibration.)
Connect a precision 300W resistor across Terminals 6 and 7.
Allow to stabilize for 20 seconds before pressing “P”.
“StEP 2” (Press “P”)
Indicator calibration is complete. It is recommended that calibration be
checked by comparing the displayed temperature with a precision thermometer.
SERIAL HARDWARE (loop-back) DIAGNOSTICS
The internal serial
communications hardware
in the IMR can be tested to
verify proper operation. The
procedure consists of
connecting the Serial Input
(SI), Serial Output (SO),and
20 mA Source into a simple
loop, and then entering an
access code.
Connect the IMR as
shown at right. Enter “Pro
9”,key-in“Code 39”, and
then press “P”.Iftheserial
communication hardware is
OK, “PASS” will be
displayed.
Conversely, if there is an internal problem, “FAIL” will be displayed. After
the diagnostic test is complete, press “P” to return to “Pro 0”.
“CodE” < > “39”
RESTORING ALL PROGRAMMING PARAMETERS BACK TO
FACTORY CONFIGURATION
All of the programming in Modules #1 through #8 can be restored back to the
factory configuration by entering a specific access code (refer to the “Factory
Configuration” section for the data that will be entered).The procedure consists of
entering “Pro 9”, keying-in “Code 66”, then pressing “P”. The IMR responds by
displaying “INItAL” for several seconds, and then returns to “Pro 0”.
Note: When this procedure is performed, all of the scaling, presets, etc. that
were programmed into the IMR will be overwritten.
“CodE” < > “66”
-18-
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